Madelung, Wilferd <br/><br/>
Religious schools and sects in medieval Islam 
Wilferd Madelung. 
 - London  Variorum  1985 
 - various pagination  23cm 
 - (Collected studies series) .
<br/><br/><label>ISBN: </label>ISBN : 0-86078-161-5. 
<br/><br/><label>Dewey Class. No.: </label>297.8  / M22R